protected function createBreadcrumbJSON(Folder $folder)
{
$breadcrumbs = array();
while ($folder->exists()) {
$breadcrumbs[] = array('title' => $folder->Title, 'id' => $folder->ID);
$folder = $folder->Parent();
}
$breadcrumbs[] = array('title' => ASSETS_DIR, 'id' => 0);
return array_reverse($breadcrumbs);
}